There are two types of garage door springs.
How to install overhead garage door extension spring.
Carefully put the clevis on the end of the spring and bolt the clevis to the pulley.
Garage door springs offset the weight of the door and allow it to open and close with ease.
Torsion see above which mounts on the header above the door and extension photo 1 which floats above the upper roller track.
Following are the steps necessary to replace one or more of these springs while taking safety precautions.
Attach the spring to the hook or clip at the hanger bracket and then lift the spring and the cables up to meet each other.
Extension springs the other kind of garage door springs are torsion springs run alongside the upper garage door tracks the ones that run parallel to the ceiling and stretch or extend out and back to help lift the garage door.
Follow the included instructions to hook up the opener and fasten it to the spring system with a pulley and cable.
The doors with two springs are easy to replace.
To install the opener you ll need to hang another angle iron from the center joist on your garage s ceiling.
If the extension springs are not the same length open the garage door and change the location of one of the s hooks so that when you close the door both springs are the same length.
A couple of carabiners can.
Garage door openers come in several varieties.
If both springs are the same length the garage door should be level across the floor.
Then ask for a price based on 7 19 lift cables and double life springs.
A pair of new springs cost about 25.
Be sure the door is open and supported when doing this.
Make sure the quote includes the trip charge parts and labor.
Install the garage door opener.
Garage door springs come in two styles.
A problem with the spring tension could cause the door to open or close unevenly improperly or at the wrong speed and adjusting the springs will likely solve the problem.
For related information see the articles troubleshooting garage door problems and fixing garaged door openers.